Grub-plow



(NoModeL) J. P. WEATHERMAN.

GRUB PLOW.

No. 485,308. Patented Nov. 1, 1892.

r m w i j D Illlmll the mold-board g are secured to the shank by UNITEDSTATES PATENT OFFICE.

JAMES P. VVEATHERMAN, OF I-IIGIILANDVILLE, MISSOURI.

GRUB-PLOW.

SPECIFICATION forming part of Letters Patent No. 485,308, dated November1, 1892.

Application filed February 27,1892- Serial No. 423,098. (No model.) i

To all whom it may concern:

Be it known that I, JAMES RWEATHERMAN, a citizen of the United States,residing at Highlandville, in the county of Christian and State ofMissouri, have invented a new and useful Grub-Plow, of which thefollowing is a specification.

My invention relates to improvements in plows used for breaking new,grubby, stumpy, or rocky land, in which a forked shank is hinged to aniron beam and held in position by a curved regulator and brace, allbeing firmly fastened to a tongue; and the objects of my improvementare, first, to provide a means by which the point of the plow may bethrown forward or backward and at the same time turn the point up ordown; second,

to afford facilities for the proper adjustment of the mold-board andshear by moving them up or down on the shank; third, to affordfacilities for the use of a twisting mold-board, straight shovel, or abull-tongue; fourth, to provide a means by which the plow may be thrownto or from the land, and, fifth, to take the weight off the horsesnecks. Iattain these objects by the mechanism illustrated in theaccompanying drawings, in which Figure 1 is a detailed view inperspective of the plow as it appears in working order. Fig. 2 is asimilar view of the beam, and Fig. 3 is a view of the adjusting-plate.

Similarletters refer to similar parts throughout.

The tongue 2' and the beam 1), secured to the under side of the tongue,constitute the framework of the plow. To the sides of the tongue arebolted the handles j j and the handlebraces Z Z. A The latter areprovided with a series of holes for elevating and lowering the handles.To the beam 1) is hinged the shank a, and to the latter is secured thecurved regulator c, which is hinged in the slot 16 of the shank a at r,and thence passes through a fork in the rear end of the beam, where itis secured by a key-bolt m. The shaper e and means of two bolts. Theshear h is attached to the mold-board by means of a tie from behind.Bolted to the under side and at the rear end of the tongue is theland-gage cl. The hitch is at the front end of the beam. The beam 1) hasa fork in the rear end three inches long to receive the regulator c, andimmediately in front of this fork is a bevel 1), at which point the beamis firmly held in any desired notch n of the land-gage d by means of theclampf. Just in front of this point is a hole in the beam,where theshank a and the beam are hinged together by a rivet 7'. At

the front end of the beam is a hole for attaehing the doubletree, whichlocates the hitch under the tongue and lifts the weight off the horsesnecks. Just in front of this the beam is flat laterally where it isbolted to the tongue. To the under side, at the rear end of the tongue,is bolted the land-gage cl, provided on the under side with a series ofnotches n to receive the bevel p of the beam. A slot 8 extends acrossthe center of the landgage, in which the bolts for the clamp f pass. Bymeans of this arrangement the plow may be moved to or from the land.

The shank a, previously referred to, is hinged to the beam 1) at r. Aslot t extends from the base to the top, in which the beamregulator andmold-board bolts all work. A curved regulator c is hinged in the slot 25at r, and at the upper end,where it passes through the fork of the beam,is a series of holes, by which means the point of the plow may be thrownforward or backward and at the same time turn the point up or down. hena twisting mold-board g is to be used, the shaper e is to be placed onthe shank under the moldboard, which device gives it the proper positionor set, and by means of concentric boltholes the two are held in placeby two bolts, which reach through the slot 15. By this last arrangementthe shovel may be raised or lowered on the shank. By simply omitting theshaper a straight shovel or bull-tongue may be used. desired notch ofland-gage d. A curved colter made to pass through slot tand extend tothe point of plow may be used. A tie is placed at the back of themold-board and shear, to which both are firmly bolted, thus securing theshear.

The clamp f holds the beam in any I am aware that prior to my inventionplows have been made with a tongue. I therefore do not claim such as myinvention; but

Whatl do claim as my invention, and desire to secure by Letters Patent,is

1. The combination, with a tongue, of a plow-beam pivoted thereto at itsfront end, a land gage or plate d, secured between the rear end of thetongue and plow-beam for the lateral adjustment of the rear end of saidbeam, and the clamp f, substantially as shown and described.

2. A plow-beam having a forked rear end and a bevel edge 10, the pivotedshank a, the adjusting-brace c, the land-gage d, and the undercut recessfor the draft-clevis, in com- 7 JAMES P. WEATHERMAN.

Witnesses:

S. J. EVANS, B. NICHOLAS.

